In the closing moments, Don seemed to have finally found inner peace after a lifetime of turmoil, meditating with his fellow retreat-goers on a cliff. And in the closing moments, the series aired one of the most famous ads of all time -- the 1971 "Hilltop" ad featuring people of all walks of life gathered on a hilltop singing "I'd Like to Buy the World a Coke," for Coca-Cola.

Did Don Draper write that ad? The signs point that direction, with several people at his retreat seeming to serve as the inspiration for the faces and people depicted in the ad.

Overall, reactions to the finale ranged from ecstatic to more muted praise of the series overall, if not exactly the finale.

Over all, "Mad Men" a great achievement on a par w/ "Breaking Bad" & "Sopranos" if not quite "The Wire." Should not be judged by finale.